The ‘great escape’ from Stalag Luft III is well-known, but, in October 1943, the Nazi death camp at Sobibor – where the stakes were higher – saw its own plot of extraordinary scope and precision. Masterminded by Polish Jew Leon Feldhendler and Russian Alexander Pechersky, the idea was to draw the SS guards to various spots of the camp at the same moment and kill them with weapons crafted in the camp workshops. It didn’t go exactly to plan that October day, but some 300 prisoners made it over the fences.